57339828 has 144 divisors (see below), whose sum is σ = 186391296. Its totient is φ = 14446080.

The previous prime is 57339823. The next prime is 57339829. The reversal of 57339828 is 82893375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57339823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74968 + ... + 75728.

It is an arithmetic number, because the mean of its divisors is an integer number (1294384).

Almost surely, 2^57339828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57339828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93195648).

57339828 is an abundant number, since it is smaller than the sum of its proper divisors (129051468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57339828 is a wasteful number, since it uses less digits than its factorization.

57339828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 809 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 57339828 is about 7572.3066498921. The cubic root of 57339828 is about 385.6134101871.

It can be divided in two parts, 573 and 39828, that added together give a square (40401 = 201²).

The spelling of 57339828 in words is "fifty-seven million, three hundred thirty-nine thousand, eight hundred twenty-eight".